全站仪在水准法测量中的应用

Total Station Using for Leveling

随着光电测距技术的发展,全站仪精度的提高,全站仪越来越多的应用于水准测量。通过推导全站仪水准法三角高程测量公式,对其精度进行了分析,论证了用全站仪水准法三角高程测量代替三四等水准测量的理论依据,并采用全站仪任一置站的方法,测量时不必量取仪器高、棱镜高,既减少了三角高程的误差又加快了施测速度。结合徕卡TC(A)2003型全站仪在开平大桥水准测量上的应用,指出全站仪水准法代替三四等水准测量是可行的。

With the develop of photoelectric location technology, the total station＇ precision is improved, Total Stations are more and more used in the leveling. Through the standard method of Total station-based leveling, its preci- sion is analysised. It shows that the third leveling and the fourth leveling can be substituted by Total station-based leveling under certain conditions. Moreover, leveling using this method needn＇t measure the height of the instrument and the target and the precision can be improved as well. The method can accelerate the measuring speed and improve the precision of leveling. Combination of Leica TC （A） 2003 Total Station＇s application in Kaiping bridge＇ leveling pointing out that Total station-based leveling instead of the third leveling and the fourth leveling is feasible.